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Kyanite and Jet Physical Properties


Jet
Jet and Kyanite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.53-3.65   
1.19-1.35   

Fracture
Splintery, Brittle, Metallic   
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references   

Cleavage
[100] perfect [010] imperfect with 79° angle between   
Not Available   

Mohs Hardness
4-7   
2.5-4   

Chemical Composition
Not Available   
Not Available   

Optical Properties >>
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Kyanite and Jet Chemical Formula

While comparing Kyanite and Jet physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Kyanite and Jet chemical formula.

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Kyanite and Jet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Jet Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 1.19-1.35 whereas that of Jet is 1.19-1.35.

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